Lepers' colonies, also known as leper colonies or lazarettos, were isolated communities established to care for individuals affected by leprosy, a chronic infectious disease caused by the bacterium Mycobacterium leprae. These colonies emerged in various parts of the world, particularly during the Middle Ages, as a response to the social stigma and fear surrounding the disease. In these colonies, residents lived apart from the general population to prevent the spread of leprosy and to provide specialized care. Over time, many colonies evolved into supportive communities where individuals could live with dignity, receive medical treatment, and engage in daily activities, despite the challenges posed by their condition.